Improvement in cotton-cleaners



W. H. JOHNSON.

COTTON CLEANER.

No. 30.227. Patented 0011.2, 1860..

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- as usually employed in cotton-cleaners.

UNITED STATES PATENT OFFICE.

"9 WILLIAM JOHNSON, or RICHMOND, ARKANSAS IMPROVEMENT 'INCOTTON-CLEANERS.

Specification 'forming part of Letters Patent No. 30,227, dated October2, 1860.

To aZZ tuhom it may cortcern:

Be it known that 1, WILLIAM H. J onnson,

which- Figure l isa side view, and Fig.2 a longi-' tudinal verticalsection, of the machine.

Similar'letters of reference in each of the several figures indicatecorresponding parts.

"The nature of my invention consists in the combination, with acotton-gin, of an inclined flue having a continuous slatted bottom withcurved tapering passages through it, and thefan-beaters, the said partsbeipg so arranged and operated that the cotton as it comes from the sawsis thrown up the flue by the action of the blast created by thestripping-brush, and

in its passage is thrown down against the slatted bottom of the flue andforward py the 1 actionof the fan-boaters. The cotton, in being.t'orced'through the flue by the stripping-brush and thrown down againstthe slatted bottom of the same, has thednst, trash, sand,&c.,knocked andblown outof it, and these impurities, by

reason of their snperiorspecific gravity and the backwardcurvedinclination of the dischargepassages and the tapering shape of saidpassages, discharge in a reverse directionfrom that in which the currentis moving. Thus having the cotton-discharge. in one direction and theimpurities in another or-an opposite direction, obviates all liabilityof the lint being beaten through the dust and sand discharge passagesand of said passages being clogged by the lint, while a perfect andrapid discharge of impurities is insured.

To enable others skilled in theart to make and use my invention, Iwill'proceed to describe its'construction and operation.

The front part of this cotton-cleaning device is to be placedimmediately underneath the cotton-gin, and consists of two cylinders,the enter one, A, carrying saws B, and the inner one, 0, being providedwith brushes 1), such The space above these two cylinders is covered bymeans of a shield, E, containing suitable slots, F, for the saws toproject through.

cylinder, and the second revolving against each other. volving motion ofthe brush-cylinder creates :a considerable draft of air through the boxG in the direction of the arrows-as seen in Fig.

Behind the brush-cylinder there is an inclined box, G, containingaseries of fan-beaters, H. *The drawings represent two of thesefan-heaters, but any number of' them may be employed. The lid of the-boxG is suitably covered at I I, so as to accommodate the fanheaters; .Therear fend 'of-,- the box is open.

The bottom of the bot is madeof a series of curved slats, J] Each ofthese slats is made of tapering thickness,'the' thin'end of each .beingat the top and somewhat overlapping the next slat, so asto form betweeneach two of the slats, an aperture, which is of a curved shape, andwhich is very narrow at the top, as seen at 0', and gradually widens Theslats toward the bottom, as seen at O. are curved backward from thesawand brush cylinders, so that the upper month, 0, of

each aperture is-directed toward the rear end of the machine. The sawand brush cylinders and the fanbeaters are geared together, so that thebrushcylinder revolves faster than the saw-cylinder, the first,farrbeater faster than the sawfan -beater faster than the'firstfan-beater, 3

Each of the fan-heaters is constructed of a central shaft and radialframes, the latter being covered with canvas or similar material. Thisis a very cheap construction, and art-- swers the purpose evenbetter'than brushes.

The operation of the machine is as follows:

The saws take the cotton from the gin, draw it through the slots F, andpass it to the brushcylinder, the saw-cylinderand brush-cylinder 2. Thisdraftis increased still more by the rapid revolutions of thefan-heaters, and'as the apertures between the slats of the bottomopen-toward the rear end of the machine, as

above setforth, said current of air does not react throughsaidapertures, as would be the case if the apertures were opentoward thecurrent of air. This current of air draws the cotton upward along theinclined and slatted bottom ofthe'box G. Thecotton, as'it arrivesunderneath the fan-heaters, is subjected to a rapid beating motion,which serves to loosen and'separate all particles of sand, trash, and

similar impurities from the cotton. :These The rapid resisting ofstraight slat-s, the apertures between which are of equalwidththroughout, is effectually prevented.

I am aware that in preparing and cleaning fibrous material-such as wool,cot-ton, 85c.-

long troughs with perforated bottoms have been used, through which thematerial is driven by a blast or by the exhaustion of the air; but I-donot lay claim to that arrangement..

What I claim as myinventiou, and desire to secure by Letters Patent, is

The combination, with a cotton-gin, of an inclined flue having acontinuous slatted bottom with curved tapering passages through it,-

and the fan-heaters, said parts being arranged and operating relativelyto one another, substantially as and for the purposes set forth. \VM. H.JOHNSON. \Vitnesses: v

'GooDWIN Y. Ar LEE,

I. M. PITTS.

